/*****************************************************************************
 * Copyright (C) Stacy Curl. All rights reserved.                            *
 * ------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the BSD      *
 * style license a copy of which has been included with this distribution in *
 * the LICENSE.txt file.                                                     *
 *****************************************************************************/
package picounit.features.verify;

import picounit.verify.constraint.Constraint;

import java.util.Collection;

public class CollectionContains extends Constraint<Collection<?>, CollectionContains> {
	private final Object element;

	public CollectionContains(Object element) {
		this.element = element;
	}
	
	public boolean hasElement(Object element) {
		return this.element.equals(element);
	}

	
	///////////////////////////////////////////////////////////////////////////////////////////////
	// Equal methods
	///////////////////////////////////////////////////////////////////////////////////////////////
	
	@Override
	public boolean equalTo(CollectionContains collectionContains) {
		return collectionContains.hasElement(element);
	}
	
	///////////////////////////////////////////////////////////////////////////////////////////////
	// Constraint methods
	///////////////////////////////////////////////////////////////////////////////////////////////

	@Override
	public boolean evaluate(Collection<?> collection) {
		return collection.contains(element);
	}

	@Override
	public String describeFailure() {
		return "does not contain <" + element + ">";
	}
}
